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Fuel Cell Train. (A friend sent this to me by email.) |
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Posted by TransitChuckG on Wed Mar 29 06:53:41 2017 The world’s first low floor passenger train powered by a hydrogen fuel cell has completed its initial test run at 80 km/h (50 mph). Alstom’s Coradia iLint is undergoing a four-week trial on its own test track in Salzgitter, Germany. The silent, zero-emission train uses the fuel cell to generate electrical power for traction, and emits only steam and condensed water.Train imageThe Coradia iLint. The field tests are expected to confirm stability of the energy supply system based on coordinated interaction between the drive, the fuel cell, and the battery of the vehicle. Braking power is also being tested to check the interface between the pneumatic and the electric brake. To accommodate the tests, a mobile filling station has been erected in Salzgitter to pump gaseous hydrogen into the pressure tank of the Coradia iLint. Dynamic tests are also underway in Velim (Czech Republic) at up to 140 km/h (87 mph), the maximum speed of the Coradia iLint. The static commissioning process has been completed, with all electrical and pneumatic functions of the trains tested and verified at standstill. TÜV Süd has certified the safety of the battery, the pressure tank system, and the fuel cell for the coming test phases. Alstom has already signed letters of intent for 60 trains with the German states of Lower Saxony, North Rhine-Westphalia, Baden-Württemberg and the Hessian transport association ‘Rhein-Main-Verkehrsverbund’. The Coradia iLint is expected to perform its first passenger test runs on the Buxtehude–Bremervörde–Bremerhaven–Cuxhaven (Germany) route beginning of 2018. Hydrogen used for the test runs is the by-product of an industrial process, which is reasonably reused as a waste product. In the long term, Alstom aims to support hydrogen production from wind energy |
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Re: Fuel Cell Train. (A friend sent this to me by email.) |
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Posted by Olog-hai on Wed Mar 29 09:29:54 2017, in response to Fuel Cell Train. (A friend sent this to me by email.), posted by TransitChuckG on Wed Mar 29 06:53:41 2017. There have been threads in the past linking to articles hyping that train, mostly from last year.Ottawa's O-Train got the DMU version back in 2013. |
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Re: Fuel Cell Train. (A friend sent this to me by email.) |
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Posted by TransitChuckG on Wed Mar 29 10:46:28 2017, in response to Re: Fuel Cell Train. (A friend sent this to me by email.), posted by Olog-hai on Wed Mar 29 09:29:54 2017. Thank you. |
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Re: Fuel Cell Train. (A friend sent this to me by email.) |
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Posted by menJop on Wed Mar 29 20:56:32 2017, in response to Fuel Cell Train. (A friend sent this to me by email.), posted by TransitChuckG on Wed Mar 29 06:53:41 2017. Wouldn't it make more sense to have wayside fuel cells powering catenary or third rail? Seems like it would be more efficient, not to mention safer than hauling around all that rocket fuel. |
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Re: Fuel Cell Train. (A friend sent this to me by email.) |
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Posted by pragmatist on Wed Mar 29 21:08:31 2017, in response to Re: Fuel Cell Train. (A friend sent this to me by email.), posted by menJop on Wed Mar 29 20:56:32 2017. To maximize the effectiveness of larger fuel cells (which tend to be solid oxide rather than PEM) you need to have a use for the heat they produce. It is one of the reasons they are more apt to be used for a co-gen (combined heat and power) setup rather than straight power generation. Since they produce DC, if they were used with an AC cat system they would require rather large inverters and transformers. The bigger F/C units take natural gas feeds, and use some of the heat to strip the hydrogen from the natural gas. |
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Re: Fuel Cell Train. (A friend sent this to me by email.) |
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Posted by Olog-hai on Wed Mar 29 22:48:38 2017, in response to Re: Fuel Cell Train. (A friend sent this to me by email.), posted by menJop on Wed Mar 29 20:56:32 2017. Fuel cells are not rocket fuel.And the initial costs of electrification are quite large; if frequency does not justify them then it makes no sense to build any, and it makes even less sense to generate electricity for an electrification system by using hydrogen in any form. Hence the point about vehicles like this. |
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Re: Fuel Cell Train. (A friend sent this to me by email.) |
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Posted by menJop on Fri Mar 31 23:38:43 2017, in response to Re: Fuel Cell Train. (A friend sent this to me by email.), posted by pragmatist on Wed Mar 29 21:08:31 2017. Interesting. So the big, solid oxide F/Cs use their own waste heat to transform CH4 -> C + 4H? What do they then do with the carbon? |
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Re: Fuel Cell Train. (A friend sent this to me by email.) |
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Posted by Olog-hai on Sat Apr 1 01:39:00 2017, in response to Re: Fuel Cell Train. (A friend sent this to me by email.), posted by pragmatist on Wed Mar 29 21:08:31 2017. The bigger F/C units take natural gas feeds, and use some of the heat to strip the hydrogen from the natural gas?? The only process that does such a thing is steam reformation, and that takes high heat and pressure. Not fuel cells. |
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Re: Fuel Cell Train. (A friend sent this to me by email.) |
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Posted by Olog-hai on Sat Apr 1 01:42:08 2017, in response to Re: Fuel Cell Train. (A friend sent this to me by email.), posted by menJop on Fri Mar 31 23:38:43 2017. Steam reformation produces CO and CO2. It takes a lot of heat energy to remove hydrogen atoms from methane; the carbon-hydrogen bond is quite strong especially when saturated. |
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